What is Snell's Law Full Formula?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The complete formula for Snell's Law is: n₁ sin θ₁ = n₂ sin θ₂
Where:
- n₁ = refractive index of the first medium
- θ₁ = angle of incidence (measured from the normal)
- n₂ = refractive index of the second medium
- θ₂ = angle of refraction (measured from the normal)
Alternatively, it can be written as: sin θ₁ / sin θ₂ = n₂ / n₁ = v₁ / v₂, where v represents the velocity of light in each medium.
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